1. Faculty of Nursing Sciences; Laval University; Quebec City; Quebec; Canada
2. Division of Geriatric Medicine; Jewish General Hospital; Montreal; Quebec; Canada
3. Institut Universitaire de Gériatrie de Montréal, Département de médecine familiale; Université de Montréal; Montreal; Quebec; Canada
4. St Mary's Research Center; St Mary's Hospital Center; Montreal; Quebec; Canada